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phpunit断言-assertIsScalar

发布时间：2021-10-04 11:29:38编辑：雪饮阅读（）

 assertIsScalar断言主要是断言一个实际值的数据类型是否是一个标量scalar。

ScalarTest.php：
<?php
use PHPUnit\Framework\TestCase;

class ScalarTest extends TestCase
{
    public function testFailure()
    {
        $this->assertIsScalar(null);
    }
    public function testOne()
    {
        $a=new StdClass;
        $this->assertIsScalar($a);
    }
    public function testTwo()
    {
        $this->assertIsScalar(1);
    }
    public function testThree()
    {
        $a=1;
        $this->assertIsScalar($a);
    }
}
运行结果如：
C:\Users\Administrator>D:\phpstudy_pro\Extensions\php\php7.4.3nts\php.exe C:\Users\Administrator\PhpstormProjects\untitled\vendor\phpunit\phpunit\phpunit -c C:\Users\Administrator\PhpstormProjects\untitled\organizing\phpunit.xml C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\ScalarTest.php
PHPUnit 9.5.8 by Sebastian Bergmann and contributors.
 
FF..                                                                4 / 4 (100%)
 
Time: 00:00.013, Memory: 6.00 MB
 
There were 2 failures:
 
1) ScalarTest::testFailure
Failed asserting that null is of type "scalar".
 
C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\ScalarTest.php:8
 
2) ScalarTest::testOne
Failed asserting that stdClass Object &000000006e1b47040000000069dd14f6 () is of type "scalar".
 
C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\ScalarTest.php:13
 
FAILURES!
Tests: 4, Assertions: 4, Failures: 2.
这第一个是null不算是标量，第二个是stdcalss的实例算是对象，也不算标量，后面两个分别是字面量1可以算是标量，而变量a的值也是1也就算是标量。